1.Expression of tissue factor in choroidal melanoma and its significance
Meixia, ZHANG ; De, LAN ; Jing, WU ; Junjun, ZHANG ; Mi, YAN
Chinese Ophthalmic Research 2010;28(3):207-209
Background It is well known that tissue factor (TF) is expressed in tumor cells and neovascular endothelial cells of tumor.It plays an important role in the formation of new blood vessels as well as the growth and metastasis of tumor.However,whether TF is expressed or not in choroidal melanoma(CM)is unclear.Objective This study is to investigate the expression of TF in a choroidal melanoma cell line and human choroidal melanoma.Methods The expression of TF was studied in the optimal choroidal melanoma-1 (OCM-1) cell line and ten specimens from CM patients using immunhistochemistry.Ten normal eye specimens from donators were used as controls.Results The TF protein was mainly expressed in the cytoplasm.It is over-expressed in OCM-1 cells with positive rate of 85.33±5.47%.Hyper-expression of TF also was found in human choroidal melanoma with a positive rate of 41.60±14.17%.The integrated optical density (IOD) of positive cells in CM was 33853.67±16445.30,and only 5.65±4.26% of positive cells was found in normal human choroidal tissue.The IOD of TF expression in normal human choroidal tissue was 426.43±316.62.Conclusion The overexpression of TF in CM cells may be a new immunotherapy target for CM treatment.
2.Cistanche deserticola plus bone marrow mesenchymal stem cell transplantation for treating spinal cord injury in rats
Jing LAN ; Jinyu YAN ; Runfu XIA ; Jianfeng LI
Chinese Journal of Tissue Engineering Research 2014;(41):6639-6644
BACKGROUND:Studies have shown that bone marrow mesenchymal stem cells under certain conditions can differentiate into nerve cells. Bone marrow mesenchymal stem celltransplantation can rebuild nervous system function and improve functional disorders in patients. Glycosides of cistanche also have a protective effect against nerve cellinjury. Their combination has been less reported. OBJECTIVE:To observe the effectiveness of Cistanche deserticola and bone marrow mesenchymal stem celltransplantation on spinal cord injury in rats. METHODS:Fifty adult Wistar rats with spinal cord injury were randomly divided into four group:a Cistanche deserticola group (intragastric administration of 20 mL/kg Cistanche deserticola concentrated solution per day), a celltransplantation group (10μL of 1×108/L bone marrow mesenchymal stem cellsuspension), a combination group (10μL of 1×108/L bone marrow mesenchymal stem cellsuspension+intragastric administration of 20 mL/kg Cistanche deserticola concentrated solution per day) and a control group (intragastric administration of 20 mL/kg normal saline per day). The intragastric administration lasted for 30 days in each group. RESULTS AND CONCLUSION:After 30 days of treatment, the expression of Nestin was significantly higher in the combination group than the other groups. After 12 weeks, Basso, Beattie, and Bresnahan scores was significantly higher in the combination group than the other groups (P<0.05);somatosensory and motor evoked potential latencies were also improve significantly in the combination group compared with the other groups (P<0.05). These findings indicate that oral administration of Cistanche deserticola combined with bone marrow mesenchymal stem cells can significantly improve the motor and neurophysiological function of spinal cord injury rats. Cistanche deserticola can improve the survival of transplanted bone marrow mesenchymal stem cells in rats with spinal cord injury.
3.Distribution characteristics of rs10975521 A/T and rs1929992 A/G polymorphism of IL-33 gene in Guangxi population
Jing GUO ; Yang XIANG ; Youfan PENG ; Yesheng WEI ; Yan LAN
Chinese Journal of Immunology 2016;32(6):849-852
Objective: To study and explore the distribution characteristics of rs10975521A/T and rs1929992A/G polymorphism of the IL-33 gene in Chinese Guangxi population. To compare the frequency distribution differences of allele and genotype of two sites among different ethnic. Methods:The polymorphism of rs10975521A/T and rs1929992A/G of IL-33 gene in 283 subjects were analyzed with the methods of Single base extension (PCR-SEB) and DNA sequencing,and the distribution frequency and the differences between groups of that were analyzed statisticaly. Results:Three genotypes of AA,AT and TT were found in rs10975521A/T with the frequency distribution of 12. 7%,53. 0% and 34. 3% respectively and there was no significant difference between sexes of each genotype and allele frequency in the Guangxi population ( P>0. 05 ) . There were significant differences of the allele frequency of rs10975521A/T in the Guangxi population compared with that in the European (P< 0. 05), han Chinese in Bejing (P< 0. 05) and Japanese people (P< 0. 01). Three genotypes of AA,AG and GG were found in rs1929992A/G with the frequency distribution of 23. 9%,53. 7% and 13. 4% respectively and there was no significant difference between sexes of each genotype and allele frequency in the Guangxi population(P> 0. 05),but the differences of genotype frequency of rs1929992A/G was statistically significant compared with that in the European,han Chinese in Bejing and Japanese people ( P< 0. 05 ) . There were significant differences of the allele frequency between Guangxi population and European (P< 0. 01),han Chinese in Bejing(P< 0. 05). Conclusion: There are different degrees of discrepancy of rs10975521A/T and rs1929992A/G polymorphism of IL-33 gene among different race and region.
4.One case of hereditary tyrosinemia type I.
Yong-lan HUANG ; Xiao-jing LI ; Xiao-ping LUO ; Hong WEI ; Yan-yan SONG
Chinese Journal of Pediatrics 2003;41(4):309-309
Humans
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Infant
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Infant, Low Birth Weight
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Infant, Newborn
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Male
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Tyrosinemias
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diagnosis
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therapy
5.Effect of terpene penetration enhancer and its mechanisms on membrane fluidity and potential of HaCaT keratinocytes.
Yi LAN ; Jing-yan WANG ; Yan LIU ; Qing-guo RU ; Yi-fei WANG ; Jing-xin YU ; Qing WU
China Journal of Chinese Materia Medica 2015;40(4):643-648
The aim of this paper was to investigate the effect of terpene penetration enhancers on membrane fluidity and membrane potential using HaCaT keratinocytes, and study the potential mechanisms of these terpene compounds using as natural transdermal penetration enhancer. Six terpene compounds, namely menthol, limonene, 1,8-cineole, menthone, terpinen-4-ol and pulegone, were chosen in this study on account of their good penetration-enhancement activities. The cytotoxicity of these terpene compounds was measured using an MTT assay. The fluorescence recovery after photobleaching (FRAP) technique was employed to measure the change of membrane fluidity of HaCaT cells. The flow cytometer was used to study the alteration of membrane fluidity of HaCaT cells, and investigate the effect of terpene compounds on intracellular Ca2+. It was found that 6 terpene compounds possessed low cytotoxicity in comparison to the well-established and standard penetration enhancer azone. Those terpene compounds could significantly enhance HaCaT cells membrane fluidity and decrease HaCaT cells membrane potentials. Meanwhile, after treated with various terpene compounds, the Ca2(+)-ATPase activity and intracellular Ca2+ of HaCaT cells was decreased significantly. Terpene penetration enhancers perhaps changed the membrane fluidity and potentials of HaCaT cells by altering the Ca2+ balance of the cell inside and outside, resulting in the low skin permeability to increase the drug transdermal absorption.
Cell Line
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Drugs, Chinese Herbal
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pharmacokinetics
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Humans
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Keratinocytes
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drug effects
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metabolism
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Membrane Fluidity
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drug effects
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Skin Absorption
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drug effects
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Terpenes
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pharmacokinetics
6.Left cervical mass.
Jian-lan XIE ; Xiao-ge ZHOU ; Yan JIN ; Xiao-dan ZHENG ; Xue-jing WEI
Chinese Journal of Pathology 2012;41(3):195-196
Adult
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Diagnosis, Differential
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Female
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Granulomatous Disease, Chronic
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metabolism
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pathology
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Hodgkin Disease
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metabolism
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pathology
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Humans
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Ki-1 Antigen
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metabolism
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Lewis X Antigen
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metabolism
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Lymphoma, Large B-Cell, Diffuse
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metabolism
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pathology
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Lymphoma, Large-Cell, Anaplastic
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metabolism
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pathology
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Young Adult
8.Research progress of mechanism of functional dyspepsia treated with acupuncture.
Kaiwei YAN ; Ling ZHAO ; Jie YANG ; Ying LAN ; Jing XU ; Chenchen WEI ; Fanrong LIANG
Chinese Acupuncture & Moxibustion 2015;35(9):973-976
Literature about functional dyspepsia treated with acupuncture in recent 5 years is retrieved in China National Knowledge Infrastructure (CNKI), Wanfang database and PubMed. The research achievements are arranged and summed up to explore the mechanism of acupuncture for functional dyspepsia. It is found that acupuncture can regulate the secretion of braingut petide, and cause the coordination response of limbic system-brain. Also, it adjusts serum molecule metabolin and the gene expression of the transduction pathway of adjustment signal for rats. It is believed that functional dyspepsia treated with acupuncture is through multiple ways, and adjusting the function of braingut axis is one of the important mechanisms.
Acupuncture Points
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Acupuncture Therapy
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Animals
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Dyspepsia
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genetics
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metabolism
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therapy
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Humans
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Rats
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Signal Transduction
9.Study on the High Yield Strain of Gentamicin Producer by Protoplast Fused and Fermentor Test
Yu-Xia GUAN ; Ji-Xian LAN ; Guang-Xin YAN ; Jing-Shi ZHENG ;
China Biotechnology 2006;0(08):-
The protoplasts of Micromonospora purpurea,the high yield strains of gentammicin producer were mutagenized by diethyl sulfate(DES)and ultraviolet radiation(UV)respectively,then fused,screened by gentamicin resistance and regenerated.The average fermentation unit 2200?U/ml could be achieved by shake flask for 10 batches.The average fermentation unit 1900?U/ml could be obtained by 5L fermentor for 7 batches.The quality of the end product conformed to CP2000,BP2000 and USP26 pharmacopoeia.
10.A comparison of defecation function between coloplasty pouch and colonic J-pouch in patients after resection for rectal carcinoma
Yinghong YANG ; Lan NIE ; Fengbin YU ; Yuan LIN ; Yanjun WU ; Xiaolin YUE ; Jing YAN ; Hongwei REN
Chinese Journal of General Surgery 2000;0(11):-
0.05). Conclusion The defecation function was similar between CPP group and CJP group. Therefore, the coloplasty pouch seems to be superior because of feasibility, simplicity, and effectiveness.